I had about 1200 pounds of porcelain designed for pots in the Tin Man kiln. I guess I could have tried to sell it. instead, I had a solar flare and formed most of it into a hearth and dome for cooking.
wet state: about 4" thick, 3' wide
like making a giant coil pot
I cut it into pieces when it was wet, let it dry for three months, and have now fired the hearth bricks. they cracked, of course, because I don't have the kind of kiln that can carefully control the firing temperature, and it was absolutely the wrong kind of clay to use for the task anyway.
so now I'm anticipating the next stages of construction: raising it up to a low table height, insulating it all around, protecting it from the elements. you tube shows me this serious structure designed for a living roof. and here is the mortar mix which must be very specific and quick for these elegant joined arches. here's the beginning. looks like he knows that curve so well that now he just free-hands it. gorgeous. completely not what I need, but that's you-tube. One of my students teaches spanish- I'll have the translation here soon!